211494272897 has 2 divisors, whose sum is σ = 211494272898. Its totient is φ = 211494272896.

The previous prime is 211494272881. The next prime is 211494272903. The reversal of 211494272897 is 798272494112.

211494272897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117221325376 + 94272947521 = 342376^2 + 307039^2 .

It is a cyclic number.

It is not a de Polignac number, because 211494272897 - 2⁴ = 211494272881 is a prime.

It is not a weakly prime, because it can be changed into another prime (211494272837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105747136448 + 105747136449.

It is an arithmetic number, because the mean of its divisors is an integer number (105747136449).

Almost surely, 2^211494272897 is an apocalyptic number.

It is an amenable number.

211494272897 is a deficient number, since it is larger than the sum of its proper divisors (1).

211494272897 is an equidigital number, since it uses as much as digits as its factorization.

211494272897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4064256, while the sum is 56.

The spelling of 211494272897 in words is "two hundred eleven billion, four hundred ninety-four million, two hundred seventy-two thousand, eight hundred ninety-seven".